# Time Calculator × vs DrillOut Calcs

The clearest difference is in-app purchases: DrillOut Calcs at none against Time Calculator ×'s 4. DrillOut Calcs also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 6 months). Time Calculator ×'s advantage is ratings volume (287 vs 2) and iOS requirement (15.6 vs 18.5). On price and device support there is nothing between them.

Both are free to download. Time Calculator × sells 4 in-app purchases, starting at $4.99 per year. DrillOut Calcs asks for nothing beyond the download.

DrillOut Calcs holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Time Calculator × has 287 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 73% of Time Calculator ×'s written reviews are positive against 100% of DrillOut Calcs's.

Time Calculator × ships an update every 6 months, DrillOut Calcs every 3 weeks. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Time Calculator × | DrillOut Calcs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (287 ratings)](https://appshunter.io/ios/app/time-calculator/id1438423896/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/drillout-calcs/id6754534235/reviews)** |
| Number of ratings | **287** | 2 |
| Positive reviews | 73.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 28 MB | 3 MB |
| Requires iOS | **15.6** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [DOUBLE U s.r.o.](https://appshunter.io/developer/331787042) | [Cody Martin](https://appshunter.io/developer/1796736420) |

## What reviewers say

### Time Calculator ×

[App page](https://appshunter.io/ios/app/time-calculator/id1438423896)

Effortlessly perform calculations with time values like addition, subtraction, multiplication, and division. Supports various time formats including days, hours, minutes, and seconds. Features a user-friendly interface for simple and functional time arithmetic.

**Highlights:** Time addition and subtraction, Time multiplication and division, Support for days, hours, minutes, seconds, Flexible time format input/display, User-friendly interface

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Yearly | $4.99 | per year |
| Remove Ads | $6.99 | one-time |
| Remove Ads | $9.99 | one-time |
| Remove Ads | $19.99 | one-time |

**What reviewers like**

- 👍 Simplifies time math
- 👍 Accurate and easy to use
- 👍 Great for work tool
- 👍 Invaluable for timing media
- 👍 Eliminates guesswork

**What reviewers complain about**

-  anúncios Unbearable ads recently
-  anúncios Too many ads
-  anúncios Ads are super annoying
-  anúncios Ads are a big problem
-  anúncios Ads make app unusable

**Reported bugs**

- Paid subscription, but ads still appear
- App defaults to D-H-M format, which is not preferred
- Calculation error: 3:64 should be 4:04
- Subtraction calculation error: 12:15pm from 6:45pm gives wrong answer

**Requested features**

- Make it pure hours and minutes, not days
- Option to disable 'DAYS' format


### DrillOut Calcs

[App page](https://appshunter.io/ios/app/drillout-calcs/id6754534235)

This app offers essential calculations for oilfield professionals performing post-frac plug drill-outs. It provides quick and accurate tools to verify flow balance, annular velocity, sweep efficiency, and surface return timing in real time, designed for simplicity and speed.

**Highlights:** Post-frac plug drill-out calculations, Flow balance verification, Annular velocity calculation, Sweep efficiency assessment, Surface return timing, Real-time data verification

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Time Calculator × free?

Time Calculator × is free to download, with in-app purchases available.

### Is DrillOut Calcs free?

DrillOut Calcs is free to download, with no in-app purchases.

### Which has better reviews, Time Calculator × or DrillOut Calcs?

DrillOut Calcs is rated higher. Time Calculator × averages 4.7 out of 5 from 287 ratings, while DrillOut Calcs averages 5.0 from 2 ratings.

### Do Time Calculator × or DrillOut Calcs have ads?

Time Calculator × shows ads; DrillOut Calcs does not.

### Which is updated more often, Time Calculator × or DrillOut Calcs?

Time Calculator × ships an update every 6 months, and DrillOut Calcs every 3 weeks. Most recently, Time Calculator × was updated on November 2, 2026 and DrillOut Calcs on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*